1,000 World Cities furthest from Larger City by Semi-Proximity
The list consists of the 1,000 world cities that are at least 220.9 km away from the closest larger city.
Typing a city will also highlight the ones that are between 1,500 and 2,000 km away
A red dot means that you'll have to type that city directly
Colour changes depending on number of other cities that can highlight that one
Dot size depends on population
Data from citypopulation for cities with pop >1 M, from geonames.org for smaller ones - cities smaller than 10k are only considered if they are the largest within 1,000 km
Definitely notched up the difficulty level on this one. It's counterintuitive to try and think of cities that are further away in an effort to fill up all the black holes. Immensely enjoyable of course though.